a634c5c7df4d9315447560e702805a9660448987eabae1b0935777d3fa656342

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
09/03/2024, 05:30

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General

Target

2024-03-09_6f34ff0c570eedc111e44e13e283e44a_cryptolocker.exe
Size

77KB
MD5

6f34ff0c570eedc111e44e13e283e44a
SHA1

c960b0d100fc9629a579ba203d3a22d73e5efdea
SHA256

a634c5c7df4d9315447560e702805a9660448987eabae1b0935777d3fa656342
SHA512

b869a03cc651aef3ef07fd716eafa75e3020c8bfcfab43ff3402caf8e3a7446775893974112d5916304eb432a8e4187c78cdba0f5cdaf822645c7024ff0c5c4e
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIuf1:vCjsIOtEvwDpj5H9YvQd2x

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012252-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012252-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2516	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1888	2024-03-09_6f34ff0c570eedc111e44e13e283e44a_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1888 wrote to memory of 2516	1888	2024-03-09_6f34ff0c570eedc111e44e13e283e44a_cryptolocker.exe	28
PID 1888 wrote to memory of 2516	1888	2024-03-09_6f34ff0c570eedc111e44e13e283e44a_cryptolocker.exe	28
PID 1888 wrote to memory of 2516	1888	2024-03-09_6f34ff0c570eedc111e44e13e283e44a_cryptolocker.exe	28
PID 1888 wrote to memory of 2516	1888	2024-03-09_6f34ff0c570eedc111e44e13e283e44a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-09_6f34ff0c570eedc111e44e13e283e44a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_6f34ff0c570eedc111e44e13e283e44a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1888
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2516

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
77KB

MD5
dbf33dfda1fbfaf71b3711303034f6a0

SHA1
857d65aa656a8f8f579519df0a59f4e8000a3114

SHA256
f4884969a258f6c1517123db479d61e971df27a07ea7f4c491e9376094a3e236

SHA512
b099933cbb546fb5165fbbfa112242c5651dbe781f9eeb40be88c398be31405a394ef079ebfd5b6d462f6bf49ebaaf0d29c7eaf7e4aeeda480dc6bb8caf21e2c

Download Submit
memory/1888-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1888-1-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/1888-8-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2516-15-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2516-18-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download